title: RAS signaling pathways, mutations and their role in colorectal cancer.
abstract: Two of the main cellular pathways in which the RAS protein operates are the mitogen-activated protein kinases (MAPK) and phosphoinositide-3 kinase (PI3K) pathways. In a normal cell, these are important in controlling several functions, such as cell growth and survival. It becomes self-evident that these events will be disrupted in a malignant cell with a deregulated MAPK or PI3K pathway. Mutations in genes involved in these pathways and interacting with RAS, as well as RAS itself will be discussed. The second part of this review concentrates on how crucial RAS signaling is in colorectal cancer progression, with references to treatment response and prognosis when RAS or other related mutations are present.
authors.affiliation: Kypros Zenonos, Katy Kyprianou, College of Medical and Dental Sciences, University of Birmingham, Edgbaston B15 2TT, United Kingdom.
authors.forename: Kypros
authors.initials: K
authors.lastname: Zenonos
authors.forename: Katy
authors.initials: K
authors.lastname: Kyprianou
keywords: Colorectal neoplasms; Genes; Mitogen-activated protein kinase signaling system; RAS; Therapeutics